mass

Q: In Part 2 of this experiment, you will calculate the rate for the following reaction by timing how l...

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Q: When the black precipitate is dissolved in sulfuric acid, the resulting aqua blue solution is

A: Mostly all sulfides such as PbS, Bi2S3, CuS, MnS, HgS, Ag2S, NiS, CoS are black in color.

Q: ). Identify the alcohol from which each of the following products was obtain alcohol dehydration rea...

A: In this question we have to find the structure of alcohol whose product of dehydration product is gi...

Q: Give the percent ionization of a 0.148 M solution of a acid? (Ka for given monoprotic weak acid is 0...

A: Percent ionisation is the ratio of concentration of ionised acid to the initial concentration of aci...

Q: If a 6.00% (w/v) citric acid solution contains 6.00 grams of citric acid in every 100.0 mL of the so...

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Q: 5) Calculate the volume of concentrated ammonia (molecular weight = 17) needed to prepare 100 ml of ...

A: Given :  Kb = 1.8 x 10-5  Density of solution = 0.9 g/ml  Concentration of ammonia solution = 28%  p...

Q: expression for the equilibrium constant

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Q: Test Tube Observations Chemical Equation Reactants 1 Single Replacement Solid magnesium metal and hy...

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first three parts...

Q: Fill in the information missing from this table. nuclide protons neutrons A 22 27 ? 52 130 77 Se 34

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Q: Give the name and use of the glassware/material below: Select the correct response(s):

A: There are several glass ware used in chemical laboratory here we are required to identify the glass ...

Q: What is the best way of heating a flammable liquid like ethanol? Select the correct response: Use a ...

A: Flammable liquids are the liquids which easily catches fire.

Q: Given the thermodynamic data of ethanol below, calculate the chanee in entropy of 55.5 g of solid et...

A: To calculate change in entropy we need to calculate change in energy .  To calculate energy we would...

Q: Which of the following type of chemical reactions results in a single product. Select the correct re...

A: Chemical reactions are of different kinds.  A decomposition reaction is a reaction in which a single...

Q: (-)-Ipc2BOTf i-Pr2NEt H. ЗА CH2CI2, -20 oC TBSOTF 2,6-lutidine 4B 5C CH2CI2, -78 °C

A: The formation of Z and E-enolates in asymmetric aldol synthesis depends on the various factors inclu...

Q: limiting reagent

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Q: How to solve for the reaction rate order and rate constant  of the dissolution of CuO given only the...

A: A reaction is said to be zero order if the plot of concentration versus time is straight line, if th...

Q: Provide the structures (line, expanded structural or condensed structural formulas) for boxes 1-17 (...

A: Structures of reactants and products in the given reactions.

Q: you know that the main frequency of N“ O1G is 3724.2 cm! and the first harmonin is 1876.06 Cm find :...

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Q: 2. Draw the two chair conformations for both cis- and trans-2-isopropylcyclohexanol (a planar form i...

A: Here we have to write the more stable chair conformation of cis - 2-isopropylcyclohexanol and trans ...

Q: 1(c) Provide the MAJOR products of the following reactions. CI, NaNH, A H, HO в Br, NaOH D CH,OH, H,...

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Q: The pH of 300 mL solution made of 0.77 M acetic acid and 0.86 M potassium acetate is (Ka = 1.8 x 10 ...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: Give the name and use of the glassware below: Select the correct response(9): Crucible Tong May be u...

A:   An image of a glassware is given. We have to identify the name of the glassware and it's function ...

Q: Illustrate the carbocation pathway for the following reactions HCI CH3-OH + H20 (acid-catalyzed)

A: Here the most stable carbocation will decide the fate of the product In first case the molecule unde...

Q: Problem 24.1 Draw the aldol product formed from each compound. CH,CHO b. (CH,),CCH,CHO C. CH d. CH3 ...

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: 3. Calculate the pH of a solution containing 0.10 M H3BO3 and 0.18 M NaH2BO3 Ka = 5.81 X 10 10

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Q: Elements in Group 17 Halides are mainly of three types: a) b) c)

A: Elements in Group 17 includes F, Cl, Br, I. These are highly reactive species. Based on the attachme...

Q: 34. The equilibrium constant for the autoionization of water at some temperature below the room temp...

A: Given data, Kw=1.2×10-15 pOH = ? 

Q: Practice Exercise: Given the following organic compounds, identify and explain the types of isomers ...

A: Isomer are compounds having same empirical formula.  

Q: In the same way that equilibrium is reached for the students in the above classrooms, chemical equil...

A: Answer - The correct option is (e) The rates of the forward and reverse reaction become equal Expla...

Q: A test of an automobile engine exhaust revealed that 3.7g of NO2 was emitted in 10 minutes of operat...

A: Mass of gas emitted in 10 minutes of operation = 3.7 g  We need to determine moles of gas emitted in...

Q: Can you check my solubility table and advise which solutes

A: Recrystallisation is a process for purifying an impure compound in a solvent. 

Q: QUESTION 1 "The AU rxn for the combustion of heptadecanal is-10195 k/mol. Prove this by: writing the...

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Q: The rate law expression must be rate

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Q: You are melting a non-flammable solid reagent in a test tube using a Bunsen burner, what safety prec...

A: The correct option is c as when we hold a test tube over a bunsen burner we generally steadily or ge...

Q: The activation energy for the gas phase decomposition of acetic anhydride is 144 kJ. (CH3CO)20→CH2=C...

A: Given (CH3CO)2O ➝ CH2=C=O + CH3COOH Activation energy (Ea) = 144 kJ/mol = 144 × 103 J/mol Case - I R...

Q: Temperature Dependence I The rate constant for a reaction relates to activation energy and temperatu...

A: Arrhenius EquationThe Arrhenius condition is an articulation that gives a connection between the rat...

Q: A mixture of neon and argon gases is maintained in a 7.63 L flask at a pressure of 3.55 atm and a te...

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Q: What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 10-9 M hydronium ion? O A) 8.4...

A: Concentration of hydronium ion = 3.98×10-9 M. pH = ?

Q: 1. Determine the pre-target compound and the reagents or reaction conditions in the synthesis of the...

A: Since you have posted multiple questions, we will answer the first one for you. To get the remaining...

Q: Potassium phosphate undergoes a double replacement reaction with magnesium acetate. a Write a balanc...

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Q: Constants Periodic Table Calculate the pH of a 5.5x10-2 M solution of sodium butyrate. Butyric acid ...

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Q: at is the purpose of the implementation of GHS? ect the correct response: To eliminate the need to t...

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Q: A 3.500g sample of iron (a transition metal) was covered with sulfur powder & heated to combine the ...

A: Given,  A 3.500g sample of iron was covered with sulfur powder & heated to combine the sulfur.  ...

Q: 560 cm3 of a gas weighs 1.55 g at STP.  Calculate the MW of the gas.

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Q: Practice Exercises Exercise 4 Exactly 0.2220 g of pure Na,Co, was dissolved in 100.0 ml of 0.0731 M ...

A: sodium bicarbonate and HCl undergoes displacement reaction where more reactive chlorine replaces car...

Q: Practice Exercise: Given the following organic compounds, jdentify and explain the types of isomers ...

A: Isomers are the compounds having same molecular formula but different structural arrangements. The g...

Q: The gas phase decomposition of nitrosyl chloride at 400 K NOCI(g) NO(g) + ½ Cl2(g) is second order i...

A: For second order rate kinetics, formula used is:-  KT = 1/[NOCl]t - 1/[NOCl]o Where K = rate constan...

Q: What is an intermediate in the mechanism of the following reaction? * catalytic H,SO, но но HO HO I-...

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Q: Explain the difference between double salt and metal complexes with examples?

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Q: From the calibration curve (yellow table calibration data) calculate the concentration of sugar in s...

A: Given:

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.